When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

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Describe the working of 3φ semi converter. And derive the expressions for average output voltage and rms output voltage?

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In which of the following is an operational amplifier (op-amp) used? a. Oscillators b. Filters c. Instrumentation circuits d. All of the above

4 Answers  

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Sir, I hav applied for the post of sec. engg in RRB in telecom-sigal domain. Can u suggest hows the question pattern. Do I hav 2 follow technical books or general aptitude books ?

2 Answers   BSNL,

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What is monotonic dac?

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Explain "VAR_INPUT" when defining a Function Block??

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Explain the advantages of using c band for satellite communication?

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how many type of plc used in siemens automation system.

1 Answers   Electrosteel,

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Why the aspect ratio of tv video display is 4:3 or 16:9?

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draw the circuit diagram of a transistor frequency convertor using a tetrode transistor?

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can u provide interview questions of AIRPORT AUTHORITY OF INDIA AIR TRAFFIC CONTROL??

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what is freshnal Zone?

1 Answers  

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